Sökning: "Jenny Aspen"

Hittade 2 uppsatser innehållade orden Jenny Aspen.

1. 1. Hur kopplad är asp till tidigare jordbruksmark? : en studie av aspförekomst och tidigare markanvändning i fem län i Mellansverige

   Kandidat-uppsats, SLU/Dept. of Ecology

   Författare :Jenny Dahl; [2013]
   Nyckelord :asp; Populus tremula; markanvändning; jordbruksmark; skog;

   Sammanfattning : Aspen (Populus tremula) is a tree that is important for biodiversity. It is a pioneer tree that is favored by much light. It is possible that aspens that regenerated on agricultural land have a different importance for biodiversity than aspens that regenerated in forests, since their conditions have been different. LÄS MER

3. 2. Sediment toxicity in River Kolbäcksån – toxicity tests with Chironomus riparius and Gammarus pulex

   L3-uppsats, SLU/Dept. of Aquatic Sciences and Assessment

   Författare :Jenny Öhlander; [2003]
   Nyckelord :Kolbäcksån; sediment toxicity; Chironomus riparius; Gammarus pulex;

   Sammanfattning : During a long time the river Kolbäcksån has been influenced by mining activities in the catchment area and consequently the lakes in the area have been affected by high metal discharges. The most contaminated lake in river Kolbäcksån is L. Saxen, which is situated in the upper part of the river system. LÄS MER